SparkFun Environmental Combo Breakout - CCS811/BME280 (Qwiic)

The SparkFun CCS811/BME280 Environmental Combo Breakout takes care of all your atmospheric-quality sensing needs with the popular CCS811 and BME280 ICs. This unique breakout provides a variety of environmental data, including barometric pressure, humidity, temperature, TVOCs and equivalent CO2 (or eCO2) levels. To make it even easier to use this breakout, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system. However, we still have broken out 0.1" spaced pins in case you prefer to use a breadboard.

The CCS811 is an exceedingly popular sensor, providing readings for equivalent CO2 (or eCO2) in the parts per million (PPM) and total volatile organic compounds in the parts per billion (PPB). The CCS811 also has a feature that allows it to fine-tune its readings if it has access to the current humidity and temperature. Luckily for us, the BME280 provides humidity, temperature and barometric pressure! This allows the sensors to work together to give us more accurate readings than they’d be able to provide on their own. We also made it easy to interface with them via I2C.


The SparkFun Qwiic connect system is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.


Get Started with the Environmental Combo Breakout Guide

  • Qwiic-Connector Enabled
  • Operation Voltage: 3.3V
  • Total Volatile Organic Compound (TVOC) sensing from 0 to 1,187 parts per billion
  • eCO2 sensing from 400 to 8,192 parts per million
  • Temp Range: -40C to 85C
  • Humidity Range: 0–100% RH, =-3% from 20–80%
  • Pressure Range: 30,000Pa to 110,000Pa, relative accuracy of 12Pa, absolute accuracy of 100Pa
  • Altitude Range: 0 to 30,000 feet (9.2 km), relative accuracy of 3.3 feet (1m) at sea level, 6.6 (2m) at 30,000 feet

SparkFun Environmental Combo Breakout - CCS811/BME280 (Qwiic) Product Help and Resources

CCS811/BME280 (Qwiic) Environmental Combo Breakout Hookup Guide

September 8, 2017

Sense various environmental conditions such as temperature, humidity, barometric pressure, eCO2 and tVOCs with the CCS811 and BME280 combo breakout board.

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

3 Programming

Skill Level: Competent - The toolchain for programming is a bit more complex and will examples may not be explicitly provided for you. You will be required to have a fundamental knowledge of programming and be required to provide your own code. You may need to modify existing libraries or code to work with your specific hardware. Sensor and hardware interfaces will be SPI or I2C.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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Customer Comments

  • What a horribly depressing output range .. I guess no need for it to go lower, sadly.

    “eCO2: The equivalent CO2 (eCO2) output range for CCS811 is from 400ppm to 8192ppm. Values outside this range are clipped.”

  • Aren’t the breadboard-spaced pins 0.1", not 1mm? :)

Customer Reviews

5 out of 5

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Bought for hackathon

I bought this for making an air quality monitoring device for a hackathon and it worked first time out of the box with the sample code. It was easy to integrate and was the most reliable part of our project. The global average CO2 is (unfortunately) above 400ppm, so the range works just fine. It agreed with the HVAC control panel for the room’s CO2 so seemed to be reasonably accurate. The response time also is within a few seconds.

Cool board

Everything worked fine. The board, the libraries and the example code. I was in the process of trying to find my color touchscreen shield for it, then I found about about Nordic’s Thingy:52 development kit for $40. I bought that because it will do everything I want (and more) through the smartphone, also because I still can’t find my touchscreen…